Scala Mutable SortedSet exists() 方法
在 Scala 可变集合中,SortedSet exists()方法用于测试谓词是否适用于 SortedSet 的某些元素。
Method Definition: def exists(p: (A) => Boolean): Boolean
Return Type: It returns true if the stated predicate holds true for some elements of the SortedSet else it returns false.
示例 #1:
// Scala program of exists()
// method
import scala.collection.mutable.SortedSet
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a list
val s1 = SortedSet(17, 7, 27, 37)
// Applying exists method
val result = s1.exists(y => {y % 3 == 0})
// Displays output
println(result)
}
}
输出:
true
示例 #2:
// Scala program of exists()
// method
import scala.collection.mutable.SortedSet
// Creating object
object GfG
{
// Main method
def main(args:Array[String])
{
// Creating a list
val s1 = SortedSet(15, 2, 3, 45, 6)
// Applying exists method
val result = s1.exists(y => {y % 7 == 0})
// Displays output
println(result)
}
}
输出:
false